Self-dumping bucket with brake



Sept' 20, 1966 R. D. SHOM@ 3,273,755

SELF-DUMPNG BUCKET WITH BRAKE i L nl h| zl i E l 34 E '9 2O-`Ir 56 2| ll l 1 2" n 3| I6 25 L J 'f' P f INVENTOR.

l *l 30 '1' J/JROBERT D. sHoMo 2?/ E- @.WLW

ATTORNEYS Sept. 20, 1966 R, D, sHoMO 3,273,755

SELF-DUMPING BUCKET WITH BRAKE Filed April l, 1964 4 Sheets-Sheet 2 3029 23 INVENTOR.

- 4 ROBERT am@ MIWSLW ATTORME YS Sept. 20, 1966 R. D. sHoMo SELF-DUMPINGBUCKET WITH BRAKE 4 Sheets-Sheet S5 Filed April l, 1964 INVENTOR.

ROBERT D. SHO MO A TTC RNE YS Sept. 20, 1966 R. D. SHOM@ SELF-DUMPINGBUCKET WITH BRAKE 4 Sheets-Sheet 4 Filed April l, 1964 INVE/T.

ROBERT D. SHiOMO ATTORNEYS United States Patent O 3,273,755 SELF-DUMPINGBUCKET WITH BRAKE Robert D. Shomo, Taylor, Mich., assigner ofthirty-three and one-third percent to Ernest S. Shomo, Taylor,

Mich., and thirty-three and one-third percent to Claude R. Boyd,Dearborn, Mich.

Filed Apr. 1, 1964, Ser. No. 356,547 19 Claims. (Cl. 222-166) Thisinvention relates to a self-dumping bucket or hopper device and, moreparticularly, to an improved selfdumping hopper device in which thedumping rate is safely and accurately controlled.

Dumping hopper devices are well known in the art. These known devices,however, exhibit numerous disadvantages. For example, these devices donot employ any mechanism for closely controlling the entire dumpingoperation but usually depend on the weight of the hopper and load tocomplete the dumping operation, which operation is usually uncontrolledand terminated with considerable impact. Further, because of thisimpact, the types of goods and materials which can be handled arelimited. Still further, few of these devices include structure forclosely controlling the dumping rate and safety features f-or preventingaccidental dumping.

Accordingly, it is an object of this invention to provide an improveddumping hopper device.

Another object of this invention is to provide an improved self-dumpinghopper device.

It is another object of this invention to provide a selfdumping hopperdevice with a braking system for accurately controlling the dumpingoperation of the hopper throughout the dumping thereof.

Still another object of this invention is to provide a self-dumpinghopper with safety means for preventing accidental dumping of thehopper.

Briefly, in accordance with aspects of this invention, I provide aself-dumping hopper with a platform, or frame, and a handle pivotallymounted on the platform for controlling the entire dumping operation,which handle includes a locking latch for engaging a stationary portionof the platform to prevent accidental movement of the locking handle.Advantageously, the control handle is linked to a pair of brake arms forclosely controlling the movement, or pivoting, of the hopper throughoutits pivoting operation. In accordance with another feature of thisinvention, I employ a self-dumping hopper having a pair of opposed slidepins, or shafts7 projecting from the sides thereof at points between thehopper center of gravity and a side of the hopper. These slide pins areeach mounted in pairs of sliding blocks, which pairs of blocks sliderelative to the frame between a xed brake member and a pivotally mountedbrake member. Advantageously, the pivoting ends of the pivotally mountedmembers are each connected by links to the handle so that the handle maybe manually moved to move the pivotally mounted brake members and thusapply a braking force to the sliding blocks to closely control therotation of the hopper throughout the dumping operation. In accordancewith another aspect of this invention, a braking assistance means suchas a pair of helical springs or hydraulic cylinders is connected tocorner posts of the .platform and each spring or hydraulic cylinder isconnected to one of the slide pins to oppose the dumping motion of thehopper and to assist in restoring the hopper to its upright position.

In accordance with yet another aspect of this invention, safety featuresare provided to prevent accidental dumping. One of these safety featuresis the previously mentioned latch on the handle which prevents thehandle from being raised unless the latch is rotated. Another safetyfeature is the connection between the handle and Patented Sept. 20, 1956frame for rotation of the handle about horizontal pivot pins so that thehandle, which is linked to the brake arms, normally maintains a lockingengagement with each of the brake arms and thus the normal weight of thehandle locks the hopper in an upright position. In accordance with afurther safety feature of this invention, a wedge device is located oneach side of the hopper and attached to the handle to engage the slidepins and thereby prevent sliding of the slide pins and thus lock thehopper in an upright position. Advantageously, these wedge devices, orslide pin stop members,l serve to bring the hopper in an uprightposition when the handle is pivoted downwardly and the hopper is nearlyupright. In accordance with still other aspects of this invention, aself-dumping hopper device is -provided with a control handle whichcontrols the initiation of the dumping operation and also accuratelycontrols the braking of the hopper throughout the dumping operation.Advantageously, by the use of this control and braking handle, thehopper can be stopped in any position during the dumping and held inthat position by the application of a force to the handle. Because thebrake mechanism and the associated mechanism is completely inclosed tothereby prevent accidents, the operator cannot injure himself. Inaccordance with still further aspects of this invention, I provide arocker-mounted, self-dumping hopper which dumps itself even whensubstantially empty because one of the sides slopes inwardly to thebottom and a vertical projection of the center of gravity passes throughthis side. Stated in another manner, the hopper is formed with aninclined side which joins the bottom to define a line so that a verticalprojection of the hopper center of gravity extends through the inclinedside, causing the weight of the hopper to aid the dumping of the hoppereven when the hopper is in an upright position.

These and various -other objects and features of the invention will bemore clearly understood .from a reading of the detailed description ofthe invention in conjunction with the drawings in which:

FIG. 1 is a side view, in elevation, of the illustrative embodiment ofthis invention;

FIG. 2 is a view of the invention of FIG. 1 taken along the lines 2-2and looking in the direction of the arrows;

FIG. 3 is a plan view of the embodiment of FIG. 1 taken along the lines3-3 and looking in the direction of the arrows;

FIG. 4 is a side elevational view similar to FIG. 1 and showing thehopper partially rotated and the control handle in an elevated position;

FIG. 5 is a detail, to an enlarged scale, of a portion of the embodimentof FIG. 1;

FIG. 6 is a view, in section, taken along the lines 6-6 of FIG. 5 andlooking in the direction of the arrows;

FIG. 7 is a fragmentary view, in elevation and partly in section, of theembodiment of FIG. 1 taken along the lines '7-7 thereof to an enlargedscale;

FIG. 8 is a fragmentary view to an enlarged scale of the control handle;

FIG. 9 is a view, in elevation and partly in section, to an enlargedscale taken along the lines 9 9 of FIG. 2; and

FIG. 10 is a fragmentary elevational view of a modification of theinvention showing the use of hydraulic cylinders in the braking system.

FIGS. 1 and 2 are views, in elevation, taken at right angles relative toeach other of one illustrative embodiment of this invention `and show ahopper 10 mounted on a supporting framework, or frame, 12 so that thehopper 10 -may be rotated or rocked relative to the. framework, orplatform, 12 to dump the hopper contents. The hopper lll includes ravertical side 13 which terminates at the top in a lip 14 which serves asa reinforcing member for the hopper 18. The hopper also includes aninclined or sloping side 15 which slopes downwardly toward the verticalside 13 and terminates in an integrally formed bottom portion 16. Thehopper 18 further includes a pair of opposing, substantially vertical,sides 17, 18, as best seen in FIGS. 2 and 3. A pair of rockers 19, 20 issecured in spacial relationship to the sides 17, 18, respectively, bymeans of blocks 21 which are welded, or otherwise secured, to the sides.17, 18 and to the rockers .19, 28. These rockers 19, 28 preferablydefine sectors of circles `and support the hopper 10 on frame 12 forrocking movement in a manner which will be subsequently described.

The framework 12 includes a pair of longitudinal base members 23, 24which support the rockers 19, 20. Each of the rockers 19, 28 has aplurality of equally spaced studs, or pins, 25 on the periphery thereofwhich engage correspondingly spaced holes 26 on base members 23, 24 toprevent relative sliding movement between rockers 19, and base members23, 24. These base members 23, 24 are connected by a group of six crossmembers 28, 29, 30, 31, 32 and 33, three of which define the floorengaging portion of the framework. Preferably, but not necessarily, thecross members 2S through 33 are formed from bar channel, i.e., U-shapedin cross section and have the arms, or anges, of the Us directeddownwardly. Members 28, 29 and 30 provide `a substantially wide surfaceportion in the form of the cross bar of the Us to support the basemembers 23, 24 of the framework 1,2. A group of cross members 31, 32 and33 connects the longitudinal members 23, 24 and is aligned and mountedabove the door engaging members 30, 29 and 28, respectively. Theframework 12 includes a group of four corner posts 34, 35, 36 and 37.These corner posts are vertically mounted in pairs on the longitudinalmembers 23, 24 and are secured thereto by suitable means, such as bywelding.

The braking means includes a pair of intermediate upright members 39,4t) secured to the longitudinal members 23, 24, respectively. A pair ofshort sections of bar channel 41, 42 is mounted lunder the ends of thebase members 23, 24, respectively, and completes the Hoor engagingportion of the platform 12. The intermediate upright member 39 isconnected to the corner post 35 by means of a bar channel member 43,which member acts as the stationary lower brake yarm, or member, in amanner which will be subsequently described. Similarly, on the oppositeside of the yframe 12 from the member 43, a similar bar channel member44 connects the vertical member 40 with corner post 37 and denes asimilar stationary lower brake member. A pair of upper brake members, orarms, 45, 46 are each pivotally connected to an extension 47, 48 of therespective upright members 39, 48 by means of a pair of pins 49, 50 sothat the upper brake arm 45 pivots in a vertical plane which includesthe stationary brake member 43 and the upper brake arm 46 pivots in avertical plane including the stationary brake member 44. These brakemembers 43, 44, 45 and 46 are employed to control the dumping, orpouring, rate, that is, the rate at which the hopper y10 pivots, orrocks, relative to the frame 12 in a manner which will be subsequentlydescribed. The frame 12 includes a brace 52 between corner posts 34, 36.The frame 12 also includes a reinforcing brace 53 between the cornerpost 34 and the intermediate member 39 and a similar reinforcing brace54 between the corner post 36 and the intermediate upright member 40.

The braking means lalso includes a pair of shafts, or slide pins 55, 56,one of which is secured to each of the sides 17, 18, respectively, ofthe hopper 18 at points dening the center of curvature of rockers 19,20, respectively. Rocking movement of the hopper 10 is controlled bycontrolling the translation of these shafts 55, 56 relative to the frame12. The slide pins 55, 56 are each rotatably mounted in a pair of spacedapart bronze bearing or brake blocks 57, which may be of other suitablebearing material, each of which defines a portion of a cylindricalsurface to receive the slide pins, or shafts, 55, 56 and which blocksslide in pairs relative to the respective stationary `arms 43, 44 andthe respective pivotally mounted brake arms 45, 46. A pair of helicalsprings 58, 59 are each connected between one of the slide pins 56, 55and one of the corner posts 34, 36. These springs oppose the dumpingmotion of the hopper and aid the operator in restoring the hopper to itsvertical, or upright, position. A control and braking handle 60 ispivotally mounted on the corner posts 35, 37 by means of a pair ofapertured extension members 61, 62 which are welded, -or otherwisesecured, to the corner posts 35, 37, respectively. These aperturedextension members engage a pair of outwardly projecting pins 63, 64 onthe handle 60 to support the handle in pivotal relationship.

The handle 60 includes a pair of safety stop blocks 68 which blocksdepend from intermediate portions of the handle 60 on opposite sides ofthe hopper 10. These safety stop blocks 68 each includes a surface 69which is substantially perpendicular to the handle 60. These surfaces 69terminate in tapered or inclined surfaces 70. The inclined surfaces 70engage the shafts 55, 56 when the handle is approaching its lowermostposition, as viewed in FIGS. l and 2, to 'bring the hopper 10 to itsterminal vertical position. From this position, the hopper 10 cannotbegin to pivot, or rock, until the handle 60 is raised to a point wherethe inclined surf-aces 70 no lon-ger engage the slide pins 55, 56 andthus permit the pins 55, 56 to be translated relative to the frame 12.

The brake handle 60 `is linked to the two upper brake members 45, 46 sothat the handle acts as a manually operable brake control member bymeans of which the brake members may lbe pivoted in their respectivevertical planes to apply increased or decreased frictional pressure tothe bearing blocks, or brake blocks, 57. Link 72 connects the handle 60to the upper brake member 45 while link 73 connects the handle 60 to theupper brake member 46. Link 72 is connected to the handle 60 and to theupper brake member 45 by means of a pair of pins 74, 75. Similarly, link73 is connected to the handle 60 and to the upper brake member 46 bymeans of -a pair of pins 76, 77. When the handle 60 is moved upwardly,the upper brake arms 45, 46 will be pivoted upwardly and the pressure onthe brake blocks 57 will be decreased. Conversely, when the handle 60 ismoved downwardly, the upper brake members 45, 46 will be moveddownwardly and the pressure -on the brake blocks 57 will be increasedthus decreasing the rate at which the hopper shafts, vor pins, 55, 56are translated relative to the frame 12.

FIG. 4 shows the beginning of the tipping operation in which the handle60 has been raised to disengage the safety stop blocks 68 from thesliding pins, or shafts, 55, 56 and the pull of the center of .gravityof the loaded hopper 10 through the inclined side, or sloping side, 15has caused the tipping action to begin. The hopper 10 has rotated on itsrockers 19, 20 While the slide pins, such as pin 55, have beentranslated relative to the platform, or framework, 12 and have elongatedthe respective helical springs, such as the spring 58 shown in FIG. 4.At any time during the continued tipping of the hopper 10, i.e., therotation of the hopper relative to the frame 12, the operator may applya downward pressure to the handle 10 to force downwardly on the upperbrake members 45, 46 through the respective links 72, 73 to therebyincrease the frictional pressure on the brake blocks 57.

FIG. 5 shows the details of slide pin 55 and the sliding brake blocks 57as well as the engagement of the safety block 68 with the pin 55, all ofwhich are shown to an enlarged scale relative to the scale of FIGS. l

through 4. With the handle 60 in the horizontal position, the inclinedsurface 70 of block 68 engages the slide pin 55 to thus precludetransverse movement of the pin 55. As previously explained, however,when the handle 60 is raised, the safety blocks 68 will be moved to aposition in which surfaces 70 no longer engage slide pins 55, 56.

FIGURE 6 is a view of the structure of FIG. 5 taken along the lines 6 6and looking in the direction of the arrows. FIG. 6 shows the shaft, orslide pin 55, secured to the hopper 10 by means of an annularcylindrical sleeve 79 which is welded, or otherwise secured, to thehopper 10 as indicated at 80. FIGS. 5 and 6 show that the bearing blocks57 are generally rectangular in configuration and include opposingarcuate surfaces which engage the shaft, or slide pin, 55. The bearingblocks 57 slide in channel members on the respective upper and lowerbrake arms. For example, the lower bearing block 57, as viewed in FIG.6, is slidably mounted in a channel member 81 which is generallyU-shaped in cross section. Channel member 81 is secured to the lowerbrake arm 43 as by welding at spaced points 82, 83 along the respectiveedges of the lower brake arm and the upper bearing block 57 is slidablymounted in an inverted U- shaped cross section member 84 which issecured to the upper brake arm 45 by means of welding, such as welds 85,06. As previously mentioned, the handle 60 is connected to the upperbrake arm 45 by means of a link 72 which is connected to the upper brakearm by means of a pin75. As also previously mentioned, the upper brakearm 45 is pivotally mounted on the intermediate upright member 39 bymeans of the extension 47 and the pivot pin 49 so that downward pressureapplied to the upper brake arm through the manual operation of thehandle 60 increases the friction applied to the bearing blocks 57 tothus control the translatory movement of the shaft, or slide pin, 55. Itwill be seen that the braking of the bearing blocks is effected by botha friction means and a positive, and mechanical scissors type actionbetween the upper and lower brake means. A great extent of the saidbraking is accomplished by the scissors action alone.

The cooperation -between the rocker 19 and the longitudinal base member23 is shown in FIG. 7, which is an enlarged view taken along the lines7-7 of FIG. 4 and looking in the direction of the arrows. A similarcooperation takes place between the opposite rocker and the longitudinalbase member 24. The pins 25 on the periphery of the rocker 19 engage theholes, or apertures, 26 in the longitudinal member 2.3 to act as a gearlike arrangement to assure smooth rolling of rocker 19 without slippingon the longitudinal member 23.

FIG. 8 shows a detail to an enlarged scale of the connection between thehandle 60 and one of the upper brake members 45. A similar structure isemployed to connect the handle 60 to the other Iupper brake member 46,accordingly, only one will be described in detail. The handle 60 isconnected to the upper brake by means of a link 72 which is connected tothe handle 60 by means of a pin 74. The link 72 is connected to theupper brake arm 45 by means of pin 75 which has a rectangular portionsecured to the upper brake arm 45 by means of welding, as indicated at83, 89, or by any other suitable means. It is understood that the link72 is retained on pins 74, 75 by means of suitable keys, not shown,which are inserted through suitable apertures in the respective pins.Advantageously, the corner post has a stop plate 94 secured to the topthereof as by welding as indicated at 95 and the plate 94 has a portion96 which projects into the path of the upper brake arm 45. Thisprojection 96 acts as a positive stop for the upper brake arm 45 tolimit the pivotal motion of arm 45. Thus, the projection or stop 96prevents the handle 60 from being raised too high to permit the upperbearing block 57 to be dislodge from its position in the invertedU-shaped track 84.

Another of the safety features is shown. in detail, to an enlargedscale, in FIG. 9 which is a view taken alongthe lines 9 9 of FIG. 2 andlooking in the direction of the arrows. The purpose of this safetydevice is to prevent accidental lifting of the handle 60 and theresulting accidental dumping of the hopper |10. This safety deviceincludes a lock latch which is pivotally mounted on the handle 60 -bymeans of an arm 102 welded, or otherwise secured, to the handle asindicated at 103 and connected to the latch 100 by means of a suitablepin 105. The locking latch 100 includes a catch portion 107 which issubstantially perpendicular to the body 108 of latch 100 and engages thelower surface of the horizontal brace 52 connecting corner members 34,36. Latch 100 is retained in this locked position by means of a spring110. Latch `100 includes an upper end 112 which may be rotated in thedirection of the handle 60 so that the catch 107 will swing leftwardlyas viewed in FIG. 9 and will disengage the brace member 52. Thisunlocking operation must be done with sufficient force to overcome theforce of the spring 110. Each time the handle 60 is lowered into itshorizontal position, a diagonal edge 115 of the latch member 100 willengage the top portion of the brace member 52 causing the lower end ofthe latch 100 to swing outwardly until the catch 107 can engage thelower surface of the transverse member 52 under the force of the springand thus act as a safety catch for the handle.

FIG. l0 illustrates a modification of the invention wherein a hydraulicbraking cylinder indicated by the numeral 116 may be substituted andused instead of the spring 53 on each side of the hopper. It will beunderstood that the hydraulic cylinder 116 would be mounted on each sideof the hopper in the same location as the springs 55. The hydraulicbraking cylinder 116 would preferably be used on large hoppers. Thebraking effect is accomplished by restricting the flow of hydraulicfluid between the opposite ends of the cylinder.

As shown in FIG. 10, the hydraulic cylinder 116 is hingedly mounted atthe rear end thereof to the vertical corner post 34 by means of asuitable hinge pin 117. The hydraulic cylinder 116 is provided with apiston 118 to which is fixed a cylinder rod 119 that extends outwardlytoward the slide pin and shaft 55. The outer end of cylinder rod 119 isjournaled on the adjacent slide pin and shaft 55 by any suitable meansas by the jiournal member generally indicated by the numeral 120.

The cylinder 116 is provided with a fluid conduit 121 and 122 at eachend thereof which are adapted to admit and exhaust hydraulic fluid fromthe opposite ends of the cylinder 116. The outer ends of the conduits121 and 122 are connected to a suitable flow control valve 123 which ismanually adjustable to control the rate of ow between the opposite endsof the hydraulic cylinder 116. It will be understood that the cylinderis lled with hy draulic fluid `whereby when the control valve 123 iscompletely closed, there will be no flow between the conduits 121 and122 and the piston 118 will be held in whatever position it may be in atthat instant. If the flow control valve 123 is opened a desired amount,and the hopper 10 is dumped, the piston 118 would be moved to the leftand the fluid would ow from the left end of the cylinder and through theconduits 121 and 122 and the valve 123 to the right end of the cylinder.When the hopper is 'brought back to the upright position, the iiow offiuid would be reversed in the aforedescribed circuit. It will be seenthat the amount of opening of the valve 123 will control the rate ofexchange of the hydraulic fluid between the opposite ends -of thehydraulic cylinder 116 and provide an assisting braking means for ahopper provided with a pair of hydraulic cylinders 116.

While I have shown and described a preferred embodiment of thisinvention, it is understood that the concepts thereof can be applied toother embodiments without de- `parting from the spiritand scope of thisinvention.

What is claimed is:

1. A dumping hopper device including:

a frame;

hopper means mounted on said frame for rotation relative thereto, saidhopper means including a pair of rocker members each having a surfacedefining a sector of a circle, each of said surfaces engaging said framefor rotation relative thereto; and

braking means for closely controlling the rotation of said hopper meansrelative to said frame, said braking means including pin means mountedon said hopper means at points concentric with said rocker membersurfaces, friction means for controlling the translation of said pinmeans relative to said frame, a stationary brake member for each pinmeans, a movably mounted brake member for each pin means, a pair ofbearing blocks engaging each of said pin means, said bearing `blocksbeing slidably mounted between a stationary and a movably mounted brakemember, and handle means for controlling the friction between said brakemembers and said blocks.

2. The combination according to claim 1, further including: lock meanson said handle means for engaging said pin means and preventing thetranslation of said pin means relative to said frame means until saidhandle means is moved from a terminal position.

3. The combination according to claim 1, further comprising: a lockinglatch pivotally mounted on said handle means and positioned to engage aportion of said frame when said handle means is in -a released terminalposition.

4. A selfdumping hopper device inclu-ding:

a hopper having side means and a bottom, at least one of said side meanstapering inwardly to join said bottom along a line so that the center ofgravity of said hopper lies in a vertical plane which passes throughsaid one side means;

frame means including a pair of elongated members for supporting saidhopper;

rocker means on said hopper for engaging said elongated members;

shaft means on said side means;

a pair of bearing means engaging each of said shaft means;

brake means on said frame means and including a xed member and apivotally mounted member for each pair of bearing means, each pair ofsaid bearing means being slidably mounted between a xed and a pivotallymounted member; and

handle means pivotally mounted on said frame means `and connected toeach pivotally mounted member for controlling the frictional engagementbetween said pivotally mounted member and said bearing means.

5. The combination according to claim 4, further comprising: a stopmember mounted on said frame means and positioned in the path of one ofsaid pivotally mounted members to limit the movement of said onepivotally mounted member in response to the operation of said handlemeans.

6. The combination according to claim 4, further comprising: latch meansmounted on said handle means for coupling said handle means to saidframe means.

7. The combination according to claim 4, further comprising: stop meansmounted intermediate said handle means and positioned to engage saidshaft means when :said handle means is in a released position to preventmovement of said shaft means relative to said fraile means until saidhandle means -is moved from said released position.

8. The combination according to claim 4, further comprising: springmeans connected to said frame means and to said shaft means forassisting in the return of said hopper to an upright position.

9. A self-dumping hopper device including:

a hopper having side means and a bottom, one of said side means taperinginwardly to join said bottom ti such that the center of gravity of saidhopper lies in a vertical plane which passes through said one sidemeans;

frame means including a pair of elongated members for supporting saidhopper;

rocker means on said hopper for engaging said elongated members;

a pair of shaft means on said side means;

a pair of spaced apart bearing blocks engaging opposite sides of each ofsaid shaft means;

stationary brake means mounted on said frame means and engaging one ofeach of said pairs of bearing blocks;

pivotally mounted brake means mounted for pivotal movement on said framefor engaging the other of each of said pairs of spaced apart bearingblocks; and,

handle means pivotally mounted on said frame means and connected to saidpivotally mounted brake means, said pivotally mounted brake means andsaid stationary brake means defining transverse passages for each ofsaid pairs of bearing blocks.

10. The combination according to claim 9, further comprising: stop meanson said handle means for engaging said shaft means when said handlemeans is in a released position for preventing the tipping of saidhopper until said handle means is moved.

11. The combination according to claim 9, further comprising: latchmeans mounted on said handle means for locking said handle means to saidframe means.

12. A self-dumping hopper device including:

a hopper having side wall means and a bottom, at least `one of said sidewall means tapering inwardly to join the bottom along a line such thatthe center of gravity of said hopper lies in a vertical plane whichpasses through said one side wall means;

frame means including a pair of elongated members for supporting saidhopper;

rocker means on said hopper for engaging said elon- -gated members inrocking relationship;

shaft means on opposite ones of said side means;

a pair of spaced apart bearing blocks engaging opposite sides of each ofsaid shaft means;

stationary brake means engaging one of said bearing blocks of each ofsaid pairs of bearing blocks;

pivotally mounted brake means engaging the other bearing block of eachof said pairs of bearing blocks; and,

handle means pivotally mounted Ion said frame means and includinglinking means connecting said handle means to said pivotally mountedbrake means.

13. The combination according to claim 12, further comprising: stopmeans connected to said handle means `and positioned in the path of eachof said shaft means for preventing translation of said shaft means untilsaid handle means is pivoted relative to said frame means.

14. The combination according to claim 12, further comprising: stopmeans on said frame means positioned in the path of each of saidpivotally mounted brake means to limit the pivotal movement of saidlast-mentioned brake means.

15. The combination according to claim 12, further comprising: latchmeans on said handle means for engaging said frame means to prevent theaccidental movement of said handle means relative to said frame means.

16. The combination according to claim 15, wherein: each of said brakemeans has opposed flanges projecting toward another of said brake means.

17. A dumping hopper device including:

a frame;

hopper means mounted on said frame for rotation relative thereto;

braking means for closely controlling the rotation of said hopper; and,

means including shaft means mounted on said hopper means;

means mounting said shaft means for rotation and translation relative tosaid frame; and, means mounted on said frame for controlling thetransla: tion of said shaft means relative to said frame.

18. A dumping hopper device including:

a frame;

hopper means mounted on said frame for rotation relative thereto;

braking means for `closely controlling the rotation of said hopper; and,

said braking means including a stationary brake member, a pivotallymounted brake member and pin means connected to said hopper means andslidably mounted between said brake members, and handle means connectedto said pivotally mounted brake member.

19. A dumping hopper device including:

a frame;

hopper means mounted on said frame for rotation relative thereto;

braking means for closely controlling the rotation of said hopper;

said hopper means including a pair of rocker memmers, each having asurface defining a sector of a circle, and each of said surfacesengaging said frame for rotation relative thereto; and,

said braking means including pin means mounted on said hopper means atpoints concentric with said surfaces of said rocker members; meansmounting said pin means for rotation and translation relative to saidframe; and, friction means for controlling the translation of said pinmeans relative to said frame.

References Cited by the Examiner UNITED STATES PATENTS 1,038,318 9/1912Doud 298-178 X 1,225,517 5/1917 Smith 188-83 1,635,954 7/1927 Poth298-38 X 1,739,376 12/1929 Sherwood 298-38 2,190,869 2/ 1940 Frentzel etal. 298-14 2,591,785 4/ 1952 Crawford et al.

3,141,576 7/1964 Heise 222-160 ROBERT B. REEVES, Primary Examiner.

LOUIS l. DEMBO, Examiner.

25 N. L. STACK, Assistant Examiner.

17. A DUMPING HOPPER DEVICE INCLUDING: A FRAME; HOPPER MEANS MOUNTED ON SAID FRAME FOR ROTATION RELATIVE THERETO; BRAKING MEANS FOR CLOSELY CONTROLLING THE ROTATION OF SAID HOPPER; AND, MEANS INCLUDING SHAFT MEANS MOUNTED ON SAID HOPPER MEANS; MEANS MOUNTING SAID SHAFT MEANS FOR ROTATION AND TRANSLATION RELATIVE TO SAID FRAME; AND, MEANS MOUNTED ON SAID FRAME FOR CONTROLLING THE TRANSLATION OF SAID SHAFT MEANS RELATIVE TO SAID FRAME. 